systembc | 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd

Resubmissions

18/04/2024, 11:20

240418-nfk6macg3w10

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 09:59

Analysis

max time kernel
594s
max time network
598s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
18/04/2024, 11:20

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
Size 350KB
Sample240418-nfghfacg2x
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

knock0909.monster:4035
knock0909.xyz:4035

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

Executes dropped EXE 12 IoCs

pid	Process
4472	uwmdb.exe
2700	uwmdb.exe
4536	uwmdb.exe
1496	uwmdb.exe
1964	uwmdb.exe
1680	uwmdb.exe
2856	uwmdb.exe
4772	uwmdb.exe
2760	uwmdb.exe
4392	uwmdb.exe
780	uwmdb.exe
4032	uwmdb.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	api.ipify.org
1	api.ipify.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 3380 set thread context of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 4472 set thread context of 2700	4472	uwmdb.exe	86
PID 4536 set thread context of 1496	4536	uwmdb.exe	95
PID 1964 set thread context of 1680	1964	uwmdb.exe	98
PID 2856 set thread context of 4772	2856	uwmdb.exe	100
PID 2760 set thread context of 4392	2760	uwmdb.exe	102
PID 780 set thread context of 4032	780	uwmdb.exe	104

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Tasks\uwmdb.job	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
File created	C:\Windows\Tasks\uwmdb.job	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5116	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
5116	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

Suspicious use of WriteProcessMemory 63 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 3380 wrote to memory of 5116	3380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	81
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4472 wrote to memory of 2700	4472	uwmdb.exe	86
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 4536 wrote to memory of 1496	4536	uwmdb.exe	95
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 1964 wrote to memory of 1680	1964	uwmdb.exe	98
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2856 wrote to memory of 4772	2856	uwmdb.exe	100
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 2760 wrote to memory of 4392	2760	uwmdb.exe	102
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104
PID 780 wrote to memory of 4032	780	uwmdb.exe	104

C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
"C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
  "C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  PID:5116

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4472
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:2700

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4536
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:1496

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:1680

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2856
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:4772

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2760
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:4392

C:\ProgramData\magm\uwmdb.exe
C:\ProgramData\magm\uwmdb.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:780
- C:\ProgramData\magm\uwmdb.exe
  C:\ProgramData\magm\uwmdb.exe start
  2⤵
  - Executes dropped EXE
  PID:4032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

uwmdb.exe

Path C:\ProgramData\magm\uwmdb.exe
Size 350KB
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/780-149-0x0000000000EF0000-0x0000000000FF0000-memory.dmp

Download

memory/1964-68-0x0000000000D50000-0x0000000000E50000-memory.dmp

Download

memory/1964-75-0x0000000000D50000-0x0000000000E50000-memory.dmp

Download

memory/2760-131-0x0000000000F50000-0x0000000001050000-memory.dmp

Download

memory/2760-124-0x0000000000F50000-0x0000000001050000-memory.dmp

Download

memory/2856-96-0x0000000001020000-0x0000000001120000-memory.dmp

Download

memory/2856-103-0x0000000001020000-0x0000000001120000-memory.dmp

Download

memory/3380-2-0x00000000011A0000-0x00000000011AA000-memory.dmp

Download

memory/3380-1-0x0000000000E60000-0x0000000000F60000-memory.dmp

Download

memory/4472-15-0x0000000000D40000-0x0000000000E40000-memory.dmp

Download

memory/4536-39-0x0000000000F60000-0x0000000001060000-memory.dmp

Download

memory/5116-7-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/5116-5-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/5116-3-0x0000000000400000-0x000000000040B000-memory.dmp

Download